This article describes a research study that determined the depth of vocabulary knowledge of 28 intermediate ESL learners. The study was carried out with Bricklayer, a vocabulary assessment tool for L2 English which tested the ESL learners on 72 words. Two post-tests collected evidence for concurrent validity. A semantic distance test captured…

This study investigates task-related variation in learner performance in a computer-assisted language learning (CALL) environment. For our study, we collected data from 15 beginner and then intermediate second language (L2) learners of German who worked on 3 distinct activity types over 16 months: free composition, translation, and sentence…

This research presents a longitudinal study of learner uptake in a computer-assisted language learning (CALL) environment. Over the course of 3 semesters, 10 second language learners of German at a Canadian university used an online, parser-based CALL program that, for the purpose of this research, provided 2 different types of feedback of varying…

This article describes a study that investigates learner responses to three distinct types of corrective feedback for misspellings produced by English learners of German. Twenty-eight beginner and intermediate students used an online parser-based system for German that recorded student interaction with the software over 15 weeks. The study…

This study investigates the performance of a spell checker designed for native writers on misspellings made by second language (L2) learners. It addresses two research questions: 1) What is the correction rate of a generic spell checker for L2 misspellings? 2) What factors influence the correction rate of a generic spell checker for L2…

Describes a web-based intelligent computer assisted language learning (ICALL) system for German that provides error-specific feedback suited to learner expertise. Focuses on the Domain Knowledge and Filtering Module. Concludes with a study that supports the need for a CALL system that addresses multiple errors by considering language teaching…

Reports a study on the impact of learner control on the error correction process within a web-based Intelligent Language Tutoring System (ILTS). During three 1-hour grammar practice sessions, 33 students used an ILTS for German that provided error-specific and individualized feedback. Results indicate the majority of students (85%) sought to…

This article discusses design and usability issues pertaining to context-sensitive "help" in computer-assisted language learning (CALL). As part of the discussion, we present a study in which we examined the effects of three independent factors on student usage of context-sensitive "help": feedback, exercise type, and language proficiency. Forty…

Provides examples of student modeling techniques that have been employed in computer-assisted language learning over the past decade. Describes two systems for learning German: "German Tutor" and "Geroline." Shows how a student model can support computerized adaptive language testing for diagnostic purposes in a Web-based language learning…

This paper describes a study in which we investigated the effects of corrective feedback on learner uptake in CALL. Learner uptake is here defined as learner responses to corrective feedback in which, in case of an error, students attempt to correct their mistake(s). 177 students from three Canadian universities participated in the study during…

This paper presents a study in which we examined spelling mistakes made by 34 learners of German in an online CALL exercise. We analyzed a total of 374 spelling errors that occurred in 341 words and subsequently classified them along four dimensions: (a) competence versus performance, (b) linguistic subsystem, (c) language influence, and (d)…

In this paper we present the Report Manager of our Web-based tutoring system for German--an interface to a persistent learner report that students can inspect and manipulate. The learner report collects and retains information on the learner's progress and performance that is saved between visits. It also provides access to a journaling system…